implemented method for bottom margin collapsing
updating bottom margin collapsing
implementing alternate algorithm
working on margin collapsing algorithm
working on margin collapsing
implementing alternate collapsed margin algo
implementing alt collapsing margin algo
bug fixes for new margin collapsing
fixing margin collapsing bugs
various fixes
added doc for margin collapsing
bug fix in margin collapsing conditions
margin collapsing bug fix
Merge pull request #335 from silexlabs/margin-collapsing-debug

Margin collapsing debug